Stellar diameters and temperatures - V. 11 newly characterized exoplanet host stars

被引：111

作者：

von Braun, Kaspar ^{[1
,2
]}

Boyajian, Tabetha S. ^{[3
]}

van Belle, Gerard T. ^{[4
]}

Kane, Stephen R. ^{[5
]}

Jones, Jeremy ^{[6
,7
]}

Farrington, Chris ^{[8
]}

Schaefer, Gail ^{[8
]}

Vargas, Norm ^{[8
]}

Scott, Nic ^{[8
]}

ten Brummelaar, Theo A. ^{[8
]}

Kephart, Miranda ^{[3
]}

Gies, Douglas R. ^{[6
,7
]}

Ciardi, David R. ^{[9
]}

Lopez-Morales, Mercedes ^{[10
]}

Mazingue, Cassidy ^{[2
]}

McAlister, Harold A. ^{[8
]}

Ridgway, Stephen ^{[11
]}

Goldfinger, P. J. ^{[8
]}

Turner, Nils H. ^{[8
]}

Sturmann, Laszlo ^{[8
]}

机构：

[1] MPIA, D-69117 Heidelberg, Germany

[2] Mirasol Inst, D-81679 Munich, Germany

[3] Yale Univ, New Haven, CT 06520 USA

[4] Lowell Observ, Flagstaff, AZ 86001 USA

[5] San Francisco State Univ, Dept Phys & Astron, San Francisco, CA 94132 USA

[6] Georgia State Univ, Ctr High Angular Resolut Astron, Atlanta, GA 30302 USA

[7] Georgia State Univ, Dept Phys & Astron, Atlanta, GA 30302 USA

[8] Mt Wilson Observ, CHARA Array, Mt Wilson, CA 91023 USA

[9] CALTECH, NASA Exoplanet Sci Inst, Pasadena, CA 91125 USA

[10] CfA, Cambridge, MA 02138 USA

[11] Natl Opt Astron Observ, Tucson, AZ 85719 USA

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2014年 / 438卷 / 03期

基金：

美国国家科学基金会; 美国国家航空航天局;

关键词：

techniques: interferometric; stars: fundamental parameters; stars: general; stars: late-type; planetary systems; infrared: stars; COLOR CLASS-M; BASE-LINE INTERFEROMETRY; VIRTUAL OBSERVATORY TOOL; GENEVA-COPENHAGEN SURVEY; NARROW-BAND PHOTOMETRY; RHO CORONAE BOREALIS; MAIN-SEQUENCE STARS; HIPPARCOS RED STARS; CHARA ARRAY; NEARBY STARS;

D O I：

10.1093/mnras/stt2360

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We use near-infrared interferometric data coupled with trigonometric parallax values and spectral energy distribution fitting to directly determine stellar radii, effective temperatures and luminosities for the exoplanet host stars 61 Vir, CrB, GJ 176, GJ 614, GJ 649, GJ 876, HD 1461, HD 7924, HD 33564, HD 107383 and HD 210702. Three of these targets are M dwarfs. Statistical uncertainties in the stellar radii and effective temperatures range from 0.5 to 5 per cent and from 0.2 to 2 per cent, respectively. For eight of these targets, this work presents the first directly determined values of radius and temperature; for the other three, we provide updates to their properties. The stellar fundamental parameters are used to estimate stellar mass and calculate the location and extent of each system's circumstellar habitable zone. Two of these systems have planets that spend at least parts of their respective orbits in the system habitable zone: two of GJ 876's four planets and the planet that orbits HD 33564. We find that our value for GJ 876's stellar radius is more than 20 per cent larger than previous estimates and frequently used values in the astronomical literature.

引用

页码：2413 / 2425

页数：13

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